. >>> a vote for chuck hagel's nomination has been postponed. hagel still has the backing of all the democrats in the senate. the vote was set for today and is postponed to next week. >>> now to a medical headline this morning and a health care burden for the u.s. neurologists predict the number of alzheimer's patients is expected to triple by the year 2050. that's when as many as 14 million patients may need care for the disease. the startling projection follows a study of patient records, as well as census numbers. >> doctors are warning parents about a strain of whooping cough. the new england journal"the new medicine" reports it's caused by a vaccine resistant strain. it's the worst outbreak of its kind in 60 years. >>> and what will be the story of the weekend. a powerful blizzard is zeroing in on the northeast, threatening to bring fierce winds and up to two feet of snow. the nor'easter expected to be the worst in years, is moving in from the gulf coast and the great lakes. snow is coming down this morning in chicago. but by tomorrow night